US20150191326A1 - Tensioning reel - Google Patents
Tensioning reel Download PDFInfo
- Publication number
- US20150191326A1 US20150191326A1 US14/409,833 US201314409833A US2015191326A1 US 20150191326 A1 US20150191326 A1 US 20150191326A1 US 201314409833 A US201314409833 A US 201314409833A US 2015191326 A1 US2015191326 A1 US 2015191326A1
- Authority
- US
- United States
- Prior art keywords
- knob
- cord
- base
- pawl
- tension device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
- B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
- B65H75/34—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables
- B65H75/38—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material
- B65H75/44—Constructional details
- B65H75/4418—Arrangements for stopping winding or unwinding; Arrangements for releasing the stop means
- B65H75/4428—Arrangements for stopping winding or unwinding; Arrangements for releasing the stop means acting on the reel or on a reel blocking mechanism
- B65H75/4431—Manual stop or release button
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- A—HUMAN NECESSITIES
- A42—HEADWEAR
- A42B—HATS; HEAD COVERINGS
- A42B3/00—Helmets; Helmet covers ; Other protective head coverings
- A42B3/04—Parts, details or accessories of helmets
- A42B3/08—Chin straps or similar retention devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/30—Handled filamentary material
- B65H2701/35—Ropes, lines
Landscapes
- Helmets And Other Head Coverings (AREA)
- Basic Packing Technique (AREA)
Abstract
A cord tensioning device has three modes of operation: a tightening mode, a release to loosen and then hold mode, and a release mode for relieving all tension in the cord. In the tightening mode, the shape of ratchet pawls and ratchet teeth allow a cord winding spool to rotate in only a tightening direction. In the release to loosen and then hold mode, an actuator associated with the knob releases the ratchet pawl from the ratchet teeth in a reverse direction, but upon release of the knob, the pawl re-engages the ratchet teeth to prevent further loosening. In this manner, the tension can be incrementally loosened. In the release mode, the pawls are disengaged from the ratchet teeth, even after release of the knob, and the spool can continue to rotate within the base when an external tension is applied to the cord.
Description
- This invention was made with Government support under Contract No. W911QY-11-C-0046, awarded by the U.S. Army Material Command, a division of the United States Department of Defense. The Government has certain rights in this invention.
- Aspects of the invention relate to cord tensioning devices for use in tightening cords or laces used in lacing or strapping systems.
- It is known to provide a reel for tightening laces to close closure flaps of shoes, such as disclosed in U.S. Pat. Nos. 5,042,177 or 7,584,528. A cord reel is known to provide a helmet with an adjustable safety strap, such as disclosed in U.S. Pat. No. 6,026,798.
- In U.S. Pat. No. 6,026,798, a turn lock fastener is disclosed. This turn lock fastener includes a flat housing and a rotating knob disposed on top of the housing which can be rotated relative to the housing. Two pull cords pass out of the housing on opposite sides of the housing and are connected to helmet straps. A rotary actuator construction inside the housing allows the helmet strap to be tightened or released by turning a rotating knob. The rotary actuator is used to turn the cord wheel, on which ends of the cords are wound, in one direction or the other such that by turning the rotating knob the effective length of pull cords can be modified in opposite directions.
- An exemplary embodiment of the present application provides a cord tensioning reel having three modes of operation: a ratchet-to-tighten mode, a release-ratchet-to-loosen-and-then-hold mode, and a total release mode for relieving all tension in the cord. In the ratchet-to-tighten mode, the shape of at least one ratchet pawl and ratchet teeth allow a cord winding spool to rotate in a tightening direction upon the application of external torque. In the release-ratchet-to-loosen-and-then-hold mode, an actuator associated with the knob releases the ratchet pawl from the ratchet teeth upon an external torque to the knob in a reverse direction. Upon release of the torque on the knob in the reverse direction, the pawl re-engages the ratchet teeth to prevent further loosening, e.g., the pawl holds the tension from further loosening. In this way the tension can be incrementally loosened. In the total release mode, the pawl is disengaged from the ratchet teeth, even after release of the knob, and the spool can freewheel within the base when an external tension is or is not applied to the cord.
- According to this embodiment, the apparatus includes a knob having at least one downward extending actuator, a cord spool and a pawl ring that can engage with the spool for mutual rotation. The pawl ring is axially captured by the knob and rotationally engaged by the actuator to be forcibly rotated by the knob but with a loss in the degree of rotation between the knob and the pawl ring. The apparatus includes a base having ratchet teeth engaged by the pawl ring to allow relative rotation between a subassembly comprising the knob, pawl ring and spool with respect to the base when the knob rotates in a tightening direction and to prevent reverse rotation and cord loosening once tightened. The apparatus allows reverse rotation after the lost motion rotation is taken up, by allowing the subassembly of the knob, pawl ring and spool to rotate relative to one another in a reverse direction, a loosening direction, with respect to the base by torque applied to the knob.
- The pawl engages the ratchet teeth and slips on the ratchet teeth when rotated in a cord tightening direction when a torque is applied to the knob by the actuator applying a tangential force to the pawl ring. When the knob is turned in a reverse, loosening direction, the actuator deflects the pawl from the ratchet teeth to allow rotation of the pawl ring and engaged spool with respect to the base in a loosening direction. Release of the applied loosening direction torque on the knob allows the pawl to snap back into engagement with the ratchet teeth and holds the selected tightening state of the spool with respect to the base.
- The apparatus can also include a retainer that is secured to the base and which captures the knob onto the base. The retainer includes a body that has two grooves to provide a selectable axial position of the knob with respect to the base. In the first axial position, the apparatus is set to function in either the ratchet-to-tighten mode or the release-ratchet-to-loosen-and-then-hold mode as described herein. In a second axial position, the pawl ring is released from the ratchet teeth and/or the pawl ring is released from the spool, and the spool is free to turn within the base.
- The reel of the present application is particularly useful for tension helmet straps, particularly for military helmets, wherein a user can tighten or loosen helmet straps with one hand.
- Numerous other advantages and features will become readily apparent from the following detailed description of various embodiments and the accompanying drawings.
-
FIG. 1 is an exploded upper perspective view of a cord tensioning reel according to one embodiment of the invention; -
FIG. 2 is an exploded lower perspective view of the cord tensioning reel ofFIG. 1 ; -
FIG. 3 is a sectional view of the apparatus ofFIG. 1 after assembly and in a first operating state; -
FIG. 4 is a sectional view of the apparatus ofFIG. 3 in a second operational state; -
FIG. 5 is a sectional view taken along line 5-5 ofFIG. 3 in the first operational state with the knob in a tightening mode; -
FIG. 6 is a sectional view taken along line 5-5 ofFIG. 3 , in the first operational state with the knob in a loosening mode; -
FIG. 7 is a sectional view taken along line 7-7 ofFIG. 5 but only showing a base of the apparatus; -
FIG. 8 is a fragmentary sectional view taken along lines 8-8 ofFIG. 5 ; -
FIG. 9 is a sectional view showing the apparatus of one embodiment of the invention applied to a helmet retention system; -
FIG. 10 is a fragmentary rear view of the helmet retention system shown inFIG. 9 ; -
FIG. 10A is a perspective view of a reel of the helmet retention system ofFIG. 9 ; and -
FIG. 10B is a front view of a contact strap and loop of the helmet retention system ofFIG. 9 . - The present inventors have recognized a need for a cord tensioning reel that is compact, cost-effectively manufactured and assembled. The present inventors have recognized a need for a cord tensioning reel for military helmets or other helmets that can be used to adjust the fit and tension of a helmet strap. The present inventors have recognized a need for a cord tensioning reel that can be used in three modes of operation: a ratchet-to-tighten mode, a release-ratchet-to-loosen-and-then-hold mode, and a total release mode for relieving all tension in the cords.
- There are shown in the drawing and will be described herein in detail specific embodiments thereof with the understanding that the present disclosure is to be considered as an exemplification and is not intended to limit the invention to the specific embodiments illustrated.
FIGS. 1 and 2 illustrate acord tensioning reel 20 comprising aretainer 24, aknob 26, apawl ring 28, aspool 32 and abase 36. - The
retainer 24 includes a disk-shaped retainer flange 42 and aretainer body 46 extending downward from the flange. Theretainer body 46 is substantially hollow and cylindrical and has a lowerannular groove 50 and an upperannular groove 52 on an outside of theretainer body 46. Thegrooves mounting hole 56 extends centrally through theflange 42. The body includes acylindrical cavity 58 that is open to themounting hole 56. - Knob 26 includes a disc-shaped
top wall 63 and a slotted or knurledcylindrical side wall 64 extending downward from thetop wall 63. Thetop wall 63 includes acentral opening 66. An annularbottom lip 67 extends radially inward from an end of thesidewall 64. - Extending downward from the
top wall 63 around theopening 66 are liftingarms 70 anddetent arms 76. Also extending downward from thetop wall 63 are bosses oractuators 82. Thebosses 82 are arranged radially spaced from theopening 66 and the liftingarms 70 and the-detent arms 76. Themembers opening 66. - The
pawl ring 28 includes abase ring 94 having acentral opening 96. A plurality of spaced-apart teeth 106 extend downward from thebase ring 94.Teeth 106 are spaced apart evenly around the circumference of thebase ring 94. On top of thebase ring 94 are threepawl members - Each
pawl member pawl base 112, aflexible pawl arm 114 extending from thepawl base 112 and apawl head 116 extending from theflexible pawl arm 114. The threepawl members pawl base 112 topawl head 116 concentrically around a center of theopening 96 in a common rotary direction. - The
spool 32 includes an annulartop wall 152 and a substantially circularbottom wall 156. Anannular wall 158 connects thewalls cord winding groove 162 on outside of theannular wall 158. Thebottom wall 156 includes slottedportions cords FIG. 3 ) wound on thespool 32. Thebottom wall 156 includes acentral opening 170. Within theannular walls 152, 158 a plurality ofteeth 180 extend upward from thebottom wall 156. Theteeth 180 are evenly spaced around a circumference of theannular wall 158. Theteeth 180 are configured and spaced to mesh with theteeth 106 of the pawl ring when thepawl ring 28 is positioned against thespool 32. -
Base 36 includes a bottomcircular wall 204 and a surroundingcylindrical sidewall 206 that extends upward from thebottom wall 204. Thebottom wall 204 includescylindrical bores cords base 36 and to be wrapped around thespool 32. - The
cords cords base 36 and counterclockwise rotation of the spool dispenses thecords base 36. A plurality ofratchet teeth 210 extend radially inward from an inside surface of thesidewall 206. Theteeth 210 are evenly spaced around the circumference of thesidewall 206. Acylindrical attachment boss 220 extends upward from thebottom wall 204.Boss 220 includes acentral bore 226 that can accept ascrew 227 to hold together the entire assembledreel 20. -
FIGS. 3-5 illustrate thereel 20 in an assembled state.Spool 32 having thecords boss 220 and inside the base 36 with theattachment boss 220 extending through thespool opening 170. Thecords holes bottom wall 204. Thespool 32 is now freely rotatable on theattachment boss 220. Then, thepawl ring 28 is placed over and onto thespool 32 and thepawl ring teeth 106 mesh with thespool teeth 180 and pawl heads 116 mesh with thebase ratchet teeth 210. - A subassembly comprising the
retainer 24 andknob 26 are pressed down onto thepawl ring 28 and thebase 36. Theattachment boss 220 fits into thecavity 58 of theretainer 24. Thescrew 227 attaches theretainer 24 to thebase 36. As theknob 26 is pressed onto thebase 36, thelift arms 70 deflect radially inward due to sliding between the opposingtapered surfaces 70 a, 94 a on, respectively, thelift arms 70 andpawl base ring 94. When thelift arms 70 have deflected sufficiently inward as theknob 26 is pressed down onto the pawl ring, lift arm heads 70 b clear thepawl base ring 94 and snap back radially outward to underlie thepawl ring 94. Each boss oractuator 82 fits between aflexible arm 114 of arespective pawl ratchet teeth 210. - As illustrated in
FIG. 3 , eachdetent arm 76 includes arounded head 76 a that snaps into a selectable one of thegrooves opening 66 through the top wall of the knob is large enough and deep enough that theflange 42 can move in relative axial motion through the opening between the two positions shown inFIG. 3 andFIG. 4 as theknob 26 is raised and lowered with respect to thebase 36. - In the position shown in
FIG. 3 , thedetent head 76 a snaps into thelower groove 50. In the position shown inFIG. 4 , theknob 26 has been pulled up with respect to thebase 36 and thedetent head 76 a has snapped into theupper groove 52. In the position shown inFIG. 3 , the pawl heads 116 are engaged to theratchet teeth 210 and thepawl ring teeth 106 mesh with thespool teeth 180. In the position shown inFIG. 4 , the pawl heads 116 are pulled up to non-engagement with theratchet teeth 210 and thepawl ring teeth 106 are pulled up to non-engagement with thespool teeth 180. Thepawl ring 28 is pulled up by thelift arms 70 via the lift arm heads 70 b. The detent heads 76 a snap into thegroove 52 and astop 70 c provided on the inside of eachlift arm 70 abuts an underside 42 a of theretainer flange 42 to prevent further upward travel of, and separation of, theknob 26 from thebase 36. - As understood from
FIG. 5 , for clockwise turning of theknob 26 with respect to thebase 36, the pawlflexible arms 114 deflect radially inwardly as the pawl heads 116 slip over theratchet teeth 210. Eachpawl head 116 has a sloping surface 116 a that slides over asloping surface 210 a of the ratchet teeth. -
FIG. 5 illustrates the knob ready to turn further in a tightening direction, clockwise. Thebosses 82 abut ashoulder 112 a of eachrespective base 112. Further rotation of theknob 26 presses thebosses 82 against theshoulders 112 a and forces rotation of thepawl ring 28 and thespool 32, by the engagement of theteeth teeth 210. -
FIG. 6 illustrates theknob 26 rotated counterclockwise a short rotational angle from the positions shown inFIG. 5 , to a position where thesteep surfaces 116 b of thepawl head 116 is clear from asteep surface 210 b of theratchet teeth 210 to allow counterclockwise rotation of the pawl ring and spool with respect to the base. Thebosses 82 press against asloping backside 114 a of theflexible arms 114 to deflect the pawl heads 116 out of engagement with theratchet teeth 210. - In operation, with the
knob 26 pressed down into the configuration ofFIG. 3 , clockwise turning of theknob 26 with respect to the base 36 causes thepawl ring 28 andspool 32 to rotate clockwise and the cords are drawn into the base 36 as the cords are wound on thespool 32. Once the cords are tightened a desired amount, the steep opposingsurfaces 116 a, 210 a of the pawl heads and the ratchet teeth respectively, prevent reverse rotation of the pawl ring and loosening of cords when the knob is released by the user. - With the apparatus still in the orientation of
FIG. 3 , a counterclockwise rotation of theknob 26 with respect to thebase 36, after passing a small angle of lost motion, will rotate thepawl ring 28 andspool 32 to loosen the cord. Release of torque on the knob allows the pawl heads 116 to snap back into engagement with theratchet teeth 210 and prevents further loosening of the cord. - A third operational mode occurs when the
knob 26 is pulled up with respect to the base 36 into the orientation ofFIG. 4 . In this orientation, the spool is effectively disengaged from the base and/or from the pawl ring and is freely rotatable on the attachment boss. Thus, tension is released and the cords can be manually pulled out of the base, rotating the spool within the base. -
FIGS. 7 and 8 illustrate how thecords base 36 and are wound on thespool 32. The bottom wall 205 of thebase 36 includes the cylindrical bores 204 a, 204 b. Thebores spool 32. Thebores cord feed channel 204 c, 204 d which respectively guide the twocords feed channels 204 c, 204 d are each open to arespective window base 36 and exposed to the spool to be wound thereon. The bore/feed channel/window combinations respective cord - The present embodiment of a tension reel is particularly effective for setting tension in a strap system for a helmet.
- A
helmet retention system 600 may be used withhelmet 90 shown inFIGS. 9 , 10, 10A and 10B. The helmet retention system is substantially a mirror image across the center, vertical mid-plane of the helmet. Thehelmet retention system 600 comprises afront strap system 610 and alower strap system 620. Thefront strap system 610 has a first reelingcord 616, afirst contact strap 612, and afirst reel 631. Thelower strap system 620 has a second reelingcord 626, asecond contact strap 622, and asecond reel 632. The first and second reels can be housed in areel housing 630. Thereel housing 630 is enclosed in a soft armor neck pad for contacting the rear of a user's neck and/or head. - The first and
second reels reel 20 described inFIGS. 1-8 . - Referring to the
front strap system 610, the first reelingcord 616 is anchored to the helmet at a forward location adjacent a user's temple by afront anchor 643. The front anchor may be located between a user's eye and a user's ear, such as shown inFIG. 9 . A downward extendingportion 616 a extends downward and is fed through aloop 614 attached to afirst contact strap 612. After theloop 614 an upward extendingportion 616 b extends upward from the loop adjacent to, and in some versions substantially parallel to, the downward extendingportion 616 a until the first reeling cord reaches a firstfront system block 641. The first reeling cord slides over thefirst block 641 and thereafter the first reeling cord extends rearward along a rearward extendingportion 616 c toward the rear of the helmet on a slightly declining angle to secondfront system block 642. The reeling cord slides over thesecond block 642 and downward and forward to athird block 645 then rearward to thereel housing 630 and then into thefirst reel 631 withportion 616 d. - The
reels exemplary reel FIG. 10A . Thereel 631 is circular and has achannel 635 defined by theouter disk walls straps reel 631 comprises acenter hub 636 about which a knob 26 (FIG. 2 ) of the reel can be turned. Thereel 631 may also include an anchor where a reel cord is held at someplace along a length of the reel cord that is not an end of the reel cord. In one embodiment, the reel cord is anchored at a midpoint along its length. Turning theknob 26 of thereel 631 in a first direction draws both ends of the reel cord closer to the reel and thereby increase the tension on the reel cord and the associated contact strap. Turning the reel knob in a second direction, opposite of the first direction, will spool out the reel cord in both direction and thereby release tension on the reel cord and the corresponding contact strap. - As the reel cord enters the
reel 631 atcord portion 616 d, it is anchored as just described, and then may be wound around the reel a number of times depending on the position of the reel, and areel cord 616 e will extend out of the reel along to the opposite side of the helmet as shown inFIG. 10A . On the opposite side of the helmet, the reelingcord 616 continues in a configuration which is a mirror image to that shown inFIG. 9 and the reel cord end is anchored in place in a mirror image location opposite that shown inFIG. 9 , in some embodiments. Opposite ends of the reel cord may be anchored to the helmet in opposite front temple areas of the helmet. Likewise, the first contact strap continues under a user's chin as shown inFIG. 9 to engage the first reel cord on the opposite side. - The
front strap system 610 is configured to increase or decrease the downward tension in a forward area between a helmet 10 and the user's head. Turning the first reel knob moves the reel cord and the position of theloop 614 to move up or down in the direction H shown inFIG. 9 depending on the direction that the first reel knob is turned. - The
lower strap system 620 operates similarly to that of thefront strap system 610 but thelower strap system 620 may be positioned differently than the front strap system. Thesecond reel cord 626 may be anchored at a rear position of the helmet by arear anchor 644. Theanchor 644 may be positioned on the helmet behind the rear of a user's head when viewed from the side as shown inFIG. 9 . Thesecond reel cord 626 extends from theanchor 644 downward along a downward extendingportion 626 a and forward to a firstlower system block 646. The first block may be positioned on the helmet or on the reel housing. The second reel cord then extends forward toward a user's ear, on aforward portion 626 b to aloop 624 of thesecond contact strap 622. Thesecond reel cord 626 loops back aroundloop 624 and extends rearward along arearward portion rearward portion 626 c travels adjacent, and some configurations, substantially parallel to theforward portion 626 b. - As the second reel cord enters the
reel 632 atreel portion 626 d it may be wound around the reel a number of times depending on the position of the reel, andreel cord 626 e will extend out of the reel along to the opposite side of the helmet as shown inFIG. 10A . On the opposite side of the helmet, the reelingcord 626 continues in a configuration which is a mirror image to that shown inFIG. 9 and the reel cord end is anchored in place in a mirror image location opposite that shown inFIG. 9 , according to some embodiments. Opposite ends of the reel cord may be anchored to the helmet in opposite rear areas of the helmet. Likewise the second contact strap is configured to continue over the front of a user's chin as shown inFIG. 9 to engage the second reel cord on the opposite side. The open area chin cup 621 configuration provide by thefirst contact strap 612 and thesecond contact strap 622 and the gap there-between below the contact orcross point 611 secures the contact with the user's chin while leaving an open area of the users chin for a more comfortable fit. - The
lower strap system 620 is configured to increase or decrease the downward tension in a rear area between ahelmet 90 and the user's head. Turning the second reel knob moves the second reel cord and causes the position of theloop 624 to move substantially forward or backward in the direction I shown inFIG. 9 depending on the direction that the second reel knob is turned. - Each of the
front strap system 610 and thelower strap system 620 are adjustable by turning the knobs of the correspondingreels helmet retention system 600 may be adjusted by a user using only one hand. - The
cords FIG. 2 ) on the back side of thereels - From the foregoing, it will be observed that numerous variations and modifications may be effected without departing from the spirit and scope of the invention. It is to be understood that no limitation with respect to the specific apparatus illustrated herein is intended or should be inferred.
Claims (18)
1. A cord tension device comprising:
a base having ratchet teeth positioned along at least a portion of an inside circumference of the base;
a spool positioned within the base, wherein the spool is rotatable relative to the base to gather and release a cord;
a pawl ring having a flexible pawl arm configured to engage the ratchet teeth of the base; and
a knob having a first actuator configured such that when the knob is rotated in a first direction, the first actuator rotates the pawl ring;
wherein the knob further includes a second actuator configured such that when the knob is rotated in a second direction, opposite to the first direction, the second actuator deflects the pawl arm to move the pawl arm out of engagement with the ratchet teeth.
2. The cord tension device of claim 1 , wherein:
the spool has a first engagement portion; and
the pawl ring has a second engagement portion which is releasably engageable with the first engagement formation of the spool
3. The cord tension device of claim 2 , comprising a retainer that is mounted to the base and captures the knob onto the base, the knob axially capturing the pawl ring, wherein:
the retainer provides for first and second axial positions of the knob with respect to the base;
in the first axial position, the first and second engagement formations are engaged such that the pawl ring can rotate the spool and the spool can rotate the pawl; and
in the second axial position, the first and second engagement formations are not engaged such that relative rotation between the pawl ring and the spool is permitted.
4. The cord tension device of claim 3 , wherein the first engagement formation comprises first axially extending teeth, and the second engagement formation comprises second axially extending teeth that are configured to mesh with the first axially extending teeth when the knob is in the first axial position, and to de-mesh when the knob is in the second axial position.
5. The cord tension device of claim 4 , wherein when the knob is moved to the second axial position, the pawl head is axially displaced from the ratchet teeth to a non-engagement position.
6. The cord tension device of claim 5 , wherein the retainer comprises a disc-shaped flange and a cylindrical body depending from said flange, and the base comprises a cylindrical attachment boss that fits inside the cylindrical body, and the flange is fastened to the cylindrical attachment boss.
7. The cord tension device of claim 6 , wherein the retainer includes two grooves to define the first and second axial positions.
8. The cord tension device of claim 6 , wherein the knob comprises an opening which permits axial movement on the retainer, wherein the flange can move axially through the opening.
9. The cord tension device of claim 6 , wherein:
the knob comprises a top wall, a depending surrounding side wall, and lift arms and detent arms depending from the top wall, wherein the lift arms axially capture the pawl ring such that axial movement of knob axially moves the pawl ring;
the retainer includes two grooves defining first and second axial positions of the knob with respect to the base; and
the detent arms include detent heads that are configured to snap into one of the two grooves based on the axial position of the knob.
10. The cord tension device of claim 2 , wherein the knob comprises a top wall having a lift arm depending from the top wall to axially capture the pawl ring.
11. The cord tension device of claim 3 , wherein the base has an attachment boss and the retainer is fastened to the attachment boss.
12. The cord tension device of claim 2 , in combination with a strap for retaining a helmet on a user's head, the strap operatively connected to a cord and positionable to engage a user's chin, wherein turning the knob of the cord tension device in a first direction tensions the cord and tightens the strap on the user's chin, and turning the knob of the reel in a second direction relaxes the cord and loosens the strap on the user's chin.
13. The cord tension device of claim 1 , further comprising a retainer that is mounted to the base and captures the knob onto the base, wherein:
the retainer provides for first and second axial positions of the knob with respect to the base;
in the first axial position, the pawl head is engaged to the ratchet teeth; and
in the second axial position, the pawl head is displaced from the ratchet teeth to a non-engagement position.
14. The cord tension device of claim 1 , wherein the retainer comprises a disc-shaped flange and a cylindrical body depending from said flange, and the base comprises a cylindrical attachment boss that fits inside the cylindrical body, and the flange is fastened to the cylindrical attachment boss.
15. The cord tension device of claim 14 , wherein the retainer includes two grooves to define the first and second axial positions.
16. The cord tension device of claim 1 , wherein the knob comprises a top wall having a lift arm depending from the top wall to axially capture the pawl head and pawl arm.
17. The cord tension device of claim 1 , wherein the base has an attachment boss and the retainer is fastened to the attachment boss.
18. The cord tension device of claim 1 , further comprising a cord and a helmet strap system, wherein the spool coils a cord to tension the strap system.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US14/409,833 US20150191326A1 (en) | 2012-06-22 | 2013-06-21 | Tensioning reel |
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US201261663400P | 2012-06-22 | 2012-06-22 | |
PCT/IB2013/002322 WO2014001918A2 (en) | 2012-06-22 | 2013-06-21 | Tensioning reel |
US14/409,833 US20150191326A1 (en) | 2012-06-22 | 2013-06-21 | Tensioning reel |
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US20150191326A1 true US20150191326A1 (en) | 2015-07-09 |
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US14/409,833 Abandoned US20150191326A1 (en) | 2012-06-22 | 2013-06-21 | Tensioning reel |
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WO (1) | WO2014001918A2 (en) |
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US20190000187A1 (en) * | 2015-12-25 | 2019-01-03 | Chin-Chu Chen | Fastening device |
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US20200108283A1 (en) * | 2018-10-09 | 2020-04-09 | Checkmate Lifting & Safety Ltd | Tensioning device |
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JP7153284B2 (en) | 2020-07-14 | 2022-10-14 | スピンオン カンパニー リミテッド | wire tightening device |
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US10993504B1 (en) * | 2020-09-28 | 2021-05-04 | Fude Li | Apparatus for fastening shoelaces |
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WO2014001918A3 (en) | 2014-04-03 |
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Owner name: REVISION MILITARY LTD., VERMONT Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:REVISION MILITARY S.A.R.L.;REEL/FRAME:050121/0654 Effective date: 20190704 |